diff --git a/application/src/main/java/org/thingsboard/server/controller/OtaPackageController.java b/application/src/main/java/org/thingsboard/server/controller/OtaPackageController.java
index 002956924d..281a13a6a0 100644
--- a/application/src/main/java/org/thingsboard/server/controller/OtaPackageController.java
+++ b/application/src/main/java/org/thingsboard/server/controller/OtaPackageController.java
@@ -28,6 +28,7 @@ import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RequestPart;
 import org.springframework.web.bind.annotation.ResponseBody;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.multipart.MultipartFile;
@@ -49,6 +50,8 @@ import org.thingsboard.server.service.security.permission.Resource;
 
 import java.nio.ByteBuffer;
 
+import static org.springframework.http.MediaType.APPLICATION_JSON_VALUE;
+import static org.springframework.http.MediaType.MULTIPART_FORM_DATA_VALUE;
 import static org.thingsboard.server.controller.ControllerConstants.DEVICE_PROFILE_ID_PARAM_DESCRIPTION;
 import static org.thingsboard.server.controller.ControllerConstants.OTA_PACKAGE_CHECKSUM_ALGORITHM_ALLOWABLE_VALUES;
 import static org.thingsboard.server.controller.ControllerConstants.OTA_PACKAGE_DESCRIPTION;
@@ -105,7 +108,7 @@ public class OtaPackageController extends BaseController {
     @ApiOperation(value = "Get OTA Package Info (getOtaPackageInfoById)",
             notes = "Fetch the OTA Package Info object based on the provided OTA Package Id. " +
                     OTA_PACKAGE_INFO_DESCRIPTION + TENANT_OR_CUSTOMER_AUTHORITY_PARAGRAPH,
-            produces = "application/json")
+            produces = APPLICATION_JSON_VALUE)
     @PreAuthorize("hasAnyAuthority('TENANT_ADMIN', 'CUSTOMER_USER')")
     @RequestMapping(value = "/otaPackage/info/{otaPackageId}", method = RequestMethod.GET)
     @ResponseBody
@@ -123,7 +126,7 @@ public class OtaPackageController extends BaseController {
     @ApiOperation(value = "Get OTA Package (getOtaPackageById)",
             notes = "Fetch the OTA Package object based on the provided OTA Package Id. " +
                     "The server checks that the OTA Package is owned by the same tenant. " + OTA_PACKAGE_DESCRIPTION + TENANT_AUTHORITY_PARAGRAPH,
-            produces = "application/json")
+            produces = APPLICATION_JSON_VALUE)
     @PreAuthorize("hasAnyAuthority('TENANT_ADMIN')")
     @RequestMapping(value = "/otaPackage/{otaPackageId}", method = RequestMethod.GET)
     @ResponseBody
@@ -144,8 +147,8 @@ public class OtaPackageController extends BaseController {
                     "Specify existing OTA Package id to update the OTA Package Info. " +
                     "Referencing non-existing OTA Package Id will cause 'Not Found' error. " +
                     "\n\nOTA Package combination of the title with the version is unique in the scope of tenant. " + TENANT_AUTHORITY_PARAGRAPH,
-            produces = "application/json",
-            consumes = "application/json")
+            produces = APPLICATION_JSON_VALUE,
+            consumes = APPLICATION_JSON_VALUE)
     @PreAuthorize("hasAnyAuthority('TENANT_ADMIN')")
     @RequestMapping(value = "/otaPackage", method = RequestMethod.POST)
     @ResponseBody
@@ -168,9 +171,10 @@ public class OtaPackageController extends BaseController {
 
     @ApiOperation(value = "Save OTA Package data (saveOtaPackageData)",
             notes = "Update the OTA Package. Adds the date to the existing OTA Package Info" + TENANT_AUTHORITY_PARAGRAPH,
-            produces = "application/json")
+            produces = APPLICATION_JSON_VALUE,
+            consumes = MULTIPART_FORM_DATA_VALUE)
     @PreAuthorize("hasAnyAuthority('TENANT_ADMIN')")
-    @RequestMapping(value = "/otaPackage/{otaPackageId}", method = RequestMethod.POST)
+    @RequestMapping(value = "/otaPackage/{otaPackageId}", method = RequestMethod.POST, consumes = MULTIPART_FORM_DATA_VALUE)
     @ResponseBody
     public OtaPackageInfo saveOtaPackageData(@ApiParam(value = OTA_PACKAGE_ID_PARAM_DESCRIPTION)
                                              @PathVariable(OTA_PACKAGE_ID) String strOtaPackageId,
@@ -179,7 +183,7 @@ public class OtaPackageController extends BaseController {
                                              @ApiParam(value = "OTA Package checksum algorithm.", allowableValues = OTA_PACKAGE_CHECKSUM_ALGORITHM_ALLOWABLE_VALUES)
                                              @RequestParam(CHECKSUM_ALGORITHM) String checksumAlgorithmStr,
                                              @ApiParam(value = "OTA Package data.")
-                                             @RequestBody MultipartFile file) throws ThingsboardException {
+                                             @RequestPart MultipartFile file) throws ThingsboardException {
         checkParameter(OTA_PACKAGE_ID, strOtaPackageId);
         checkParameter(CHECKSUM_ALGORITHM, checksumAlgorithmStr);
         try {
@@ -221,7 +225,7 @@ public class OtaPackageController extends BaseController {
     @ApiOperation(value = "Get OTA Package Infos (getOtaPackages)",
             notes = "Returns a page of OTA Package Info objects owned by tenant. " +
                     PAGE_DATA_PARAMETERS + OTA_PACKAGE_INFO_DESCRIPTION + TENANT_OR_CUSTOMER_AUTHORITY_PARAGRAPH,
-            produces = "application/json")
+            produces = APPLICATION_JSON_VALUE)
     @PreAuthorize("hasAnyAuthority('TENANT_ADMIN', 'CUSTOMER_USER')")
     @RequestMapping(value = "/otaPackages", method = RequestMethod.GET)
     @ResponseBody
@@ -246,7 +250,7 @@ public class OtaPackageController extends BaseController {
     @ApiOperation(value = "Get OTA Package Infos (getOtaPackages)",
             notes = "Returns a page of OTA Package Info objects owned by tenant. " +
                     PAGE_DATA_PARAMETERS + OTA_PACKAGE_INFO_DESCRIPTION + TENANT_OR_CUSTOMER_AUTHORITY_PARAGRAPH,
-            produces = "application/json")
+            produces = APPLICATION_JSON_VALUE)
     @PreAuthorize("hasAnyAuthority('TENANT_ADMIN', 'CUSTOMER_USER')")
     @RequestMapping(value = "/otaPackages/{deviceProfileId}/{type}", method = RequestMethod.GET)
     @ResponseBody
@@ -278,7 +282,7 @@ public class OtaPackageController extends BaseController {
     @ApiOperation(value = "Delete OTA Package (deleteOtaPackage)",
             notes = "Deletes the OTA Package. Referencing non-existing OTA Package Id will cause an error. " +
                     "Can't delete the OTA Package if it is referenced by existing devices or device profile." + TENANT_AUTHORITY_PARAGRAPH,
-            produces = "application/json")
+            produces = APPLICATION_JSON_VALUE)
     @PreAuthorize("hasAnyAuthority('TENANT_ADMIN')")
     @RequestMapping(value = "/otaPackage/{otaPackageId}", method = RequestMethod.DELETE)
     @ResponseBody